From: Alexander Oh <oh.a@gmx.at>
Date: Fri, 21 May 2010 19:42:33 +0000 (+0200)
Subject: initial files of pc_communication
X-Git-Tag: abgabe~48
X-Git-Url: http://wien.tomnetworks.com/gitweb/?p=hwmod.git;a=commitdiff_plain;h=021eb0653bb6229cc9275cd8198ce03301f54a39

initial files of pc_communication
---

diff --git a/src/beh_pc_communication_tb.do b/src/beh_pc_communication_tb.do
new file mode 100644
index 0000000..2f52a4c
--- /dev/null
+++ b/src/beh_pc_communication_tb.do
@@ -0,0 +1,14 @@
+#alias fuer simulation neustarten
+alias rr "restart -f"
+
+#signale hinzufuegen
+add wave inst/*
+
+#rauszoomen
+wave zoomout 500.0
+
+#simulation starten und 100ms lang laufen lassen (wird durch assert abgebrochen)
+run -all
+
+#ganz nach links scrollen
+wave seetime 0
diff --git a/src/beh_pc_communication_tb.vhd b/src/beh_pc_communication_tb.vhd
new file mode 100644
index 0000000..c862095
--- /dev/null
+++ b/src/beh_pc_communication_tb.vhd
@@ -0,0 +1,72 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+use work.gen_pkg.all;
+use work.textmode_vga_component_pkg.all;
+use work.textmode_vga_pkg.all;
+use work.textmode_vga_platform_dependent_pkg.all;
+
+entity beh_pc_communication_tb is
+end entity beh_pc_communication_tb;
+
+architecture sim of beh_pc_communication_tb is
+begin
+	-- display
+	inst : entity work.pc_communication(beh)
+	port map (
+		sys_clk => sys_clk,
+		sys_res_n => sys_res_n,
+
+		--button=> ,
+		btn_a => btn_a,
+
+		--uart_tx=> ,
+		tx_data => tx_data,
+		tx_new => tx_new,
+		tx_done => tx_done,
+
+		--uart_rx=> ,
+		rx_data => rx_data,
+		rx_new => rx_new,
+
+		-- History=> ,
+		d_zeile => d_zeile,
+		d_spalte => d_spalte,
+		d_get => d_get,
+		d_done => d_done,
+		d_char => d_char--,
+	);
+
+	clk : process
+	begin
+		sys_clk <= '0';
+		wait for 15 ns;
+		sys_clk <= '1';
+		wait for 15 ns;
+		if stop = true then
+			wait;
+		end if;
+	end process clk;
+
+	stub_history process (d_get)
+		file f : text open read_mode is "../../src/pc_communication.test";
+	begin
+		if rising_edge(d_get) then
+			read(f, d_char);
+			wait 30 ns;
+			done <= d_done;
+		end if;
+	end process stub_history;
+
+	process
+	begin
+		-- init & reset
+		-- we only simulate pressing of button a by now!
+		sys_res_n <= 0;
+		wait for 100 ns;
+		sys_res_n <= 1;
+
+		btn_a <= 1;
+		wait;
+	end process;
+end architecture sim;
diff --git a/src/pc_communication.vhd b/src/pc_communication.vhd
new file mode 100644
index 0000000..3681c69
--- /dev/null
+++ b/src/pc_communication.vhd
@@ -0,0 +1,68 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+use work.gen_pkg.all;
+
+
+entity pc_communication is
+	port (
+		sys_clk : in std_logic;
+		sys_res_n : in std_logic;
+
+		--button
+		btn_a : in std_logic;
+
+		--uart_tx
+		tx_data : out std_logic_vector(7 downto 0);
+		tx_new : out std_logic;
+		tx_done : in std_logic;
+
+		--uart_rx
+		rx_data : in std_logic_vector(7 downt 0); --not really required
+		rx_new : in std_logic_vector;
+
+		-- History
+		d_zeile : out hzeile;
+		d_spalte : out hspalte;
+		d_get :  out std_logic;
+		d_done : in std_logic;
+		d_char : in hbyte --;
+	);
+end entity pc_communication;
+
+
+
+architecture beh of display is
+	signal push_history, push_history_next : std_logic;
+begin
+
+	sync_push_history : process (sys_clk, sys_res_n)
+	begin
+		if sys_res_n = '0' then
+			push_history <= '0';
+		elsif rising_edge(sys_clk) then
+			push_history <= push_history_next;
+		end if;
+	end process sync_push_history;
+
+	push_history : process(rx_new, rx_data, btn_a)
+	begin
+		if ( (rx_new = '1' and rx_data = X"41") or btn_a '1') then
+			push_history_next <= '1';
+		else
+			push_history_next <= '0';
+		end if;
+	end process push_history;
+
+--	sync_pc : process ()
+--	begin
+--	end process sync_pc;
+--
+--	next_state_pc : process ()
+--	begin
+--	end process next_state_pc;
+--
+--	output_pc : process ()
+--	begin
+--	end process output_pc;
+end architecture beh;